You should probably wait untill there's at least some bud on it. Only see hairs. The buds will swell up. The picking based on coloration of trichs is completly up to you based on the strain and what high your after. My cheese I gre was an indica dominat hubrid. I picked it when 90% cloudy 5%amber and 5%clear. And in happy with the results. You've got several weeks left.